What is the terrain like in the tundra biome?

Tundra is the coldest of all the biomes. Tundra comes from the Finnish Word tunturia, meaning treeless plain. It is noted for its frost-moulded landscapes, extremely low temperatures, little precipitation, poor nutrients, and short growing seasons. (from: iOS.co.uk/Biodiversity4.htm">http://www.admwebstudiOS.co.uk/Biodiversity4.htm)